Amount of expenses associated with exit or disposal activities pursuant to an authorized plan. Excludes expenses related to a discontinued operation or an asset retirement obligation.

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Reorganization and Reorganization Costs Summary (Details) - USD ($) $ in Thousands	3 Months Ended					12 Months Ended
	Dec. 29, 2019	Dec. 30, 2018	Sep. 30, 2018	Jul. 01, 2018	Apr. 01, 2018	Dec. 29, 2019	Dec. 30, 2018	Dec. 31, 2017
Restructuring Cost and Reserve
Reorganization and realignment costs	$ 12,194	$ 2,377	$ 941	$ 3,124	$ 2,626	$ 16,965	$ 9,068	$ 22,574
IT Realignment
Restructuring Cost and Reserve
Reorganization and realignment costs						9,127	0	0
G&A Realignment
Restructuring Cost and Reserve
Reorganization and realignment costs						7,749	8,785	21,663
System Optimization
Restructuring Cost and Reserve
Reorganization and realignment costs						$ 89	$ 283	$ 911